B23B 31/4006
Gripping the work or tool by a split sleeve
Official title: {Gripping the work or tool by a split sleeve (collet chucks B23B31/20)}
B23B31/4006 (Gripping the work or tool by a split sleeve) appears on 117 US grants and 85 published applications in this corpus.
Search patents in B23B- Granted patents
- 117
- Published applications
- 85
- Assignees
- 80
- Inventors
- 208
- Latest grant
- 31 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 3 | 0 |
| 1979 | 0 | 0 |
| 1980 | 3 | 0 |
| 1981 | 2 | 0 |
| 1982 | 0 | 0 |
| 1983 | 5 | 0 |
| 1984 | 0 | 0 |
| 1985 | 6 | 0 |
| 1986 | 1 | 0 |
| 1987 | 3 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 2 | 0 |
| 1991 | 1 | 0 |
| 1992 | 3 | 0 |
| 1993 | 0 | 0 |
| 1994 | 3 | 0 |
| 1995 | 2 | 0 |
| 1996 | 2 | 0 |
| 1997 | 1 | 0 |
| 1998 | 2 | 0 |
| 1999 | 4 | 0 |
| 2000 | 3 | 0 |
| 2001 | 1 | 2 |
| 2002 | 2 | 0 |
| 2003 | 1 | 3 |
| 2004 | 2 | 3 |
| 2005 | 3 | 4 |
| 2006 | 2 | 4 |
| 2007 | 5 | 6 |
| 2008 | 3 | 5 |
| 2009 | 2 | 2 |
| 2010 | 1 | 3 |
| 2011 | 1 | 1 |
| 2012 | 1 | 0 |
| 2013 | 3 | 3 |
| 2014 | 2 | 4 |
| 2015 | 3 | 5 |
| 2016 | 2 | 8 |
| 2017 | 11 | 5 |
| 2018 | 1 | 3 |
| 2019 | 5 | 2 |
| 2020 | 2 | 2 |
| 2021 | 4 | 7 |
| 2022 | 6 | 4 |
| 2023 | 2 | 2 |
| 2024 | 0 | 4 |
| 2025 | 1 | 3 |
| 2026 | 2 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Flow-forming machine and method for flow-forming31 Mar 2026US 12,589,426 B2Leifeld Metal Spinning AG
- Method for gripping constant-velocity universal joint component13 Jan 2026US 12,521,831 B2Ntn Corporation
- Robotic drill system and method of drilling with a robotic drill system11 Feb 2025US 12,220,751 B2The Boeing Company
- Spindle structure22 Aug 2023US 11,731,227 B2Agile Wing Smart Manufacturing Co., Ltd.
- Balancing adapter for a balancing device, balancing device and balancing adapter set14 Mar 2023US 11,602,794 B2Franz Haimer Maschinenbau KG
- Ram clamping system16 Oct 2025US 2025/0319526 A1Adelbert Haas GmbH
- Clamping ram and method for producing a clamping ram16 Oct 2025US 2025/0319558 A1Adelbert Haas GmbH
- Expandable jam chuck and kit2 Oct 2025US 2025/0303476 A1
- Collet chuck29 Aug 2024US 2024/0286204 A1Fuji Corporation
- Flow-forming machine and method for flow-forming30 May 2024US 2024/0173763 A1Leifeld Metal Spinning AG
Most cited
By later US patents
- Hydraulic chuck device for engagement with the inside of a tube34US 4,393,674 AAir-Mo Hydraulics, Inc. · 1983
- Workpiece machining system31US 5,081,889 AHonda Giken Kogyo Kabushiki Kaisha · 1992
- Assembly for rotating a cutting insert during a turning operation and inserts used therein29US 8,573,901 B2Kennametal Inc. · 2013
- Finger chuck for use with machine tool26US 5,464,233 AHowa Machinery, Ltd. · 1995
- Expanding collet assembly22US 5,397,135 AHardinge Brothers, Inc. · 1995